Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A one-way gateway comprising: a communication controller which takes charge of communication with a device of an internal network or infotainment network of a vehicle; a physical one-way communicator which is adapted to configure a communication section between the internal network and the infotainment network in a physically one-way form; and a data transmitter/receiver which transfers data, transmitted by the device of the internal network or infotainment network, to the physical one-way communicator via the communication controller, and transfers data, received via the physical one-way communicator, to the device of the internal network or infotainment network, wherein the physical one-way communicator comprises: a one-way transmission controller which receives the data from the device of the internal network and outputs the received data; a physical one-way data transmitter which receives the data from the one-way transmission controller via one-way communication and outputs the received data; a physical one-way data receiver which receives the data from the physical one-way data transmitter via the one-way communication and outputs the received data; and a one-way reception controller which transfers the data from the physical one-way data, receiver to the device of the infotainment network.
A one-way gateway for a vehicle network separates the internal network (e.g., controlling critical vehicle functions) from the infotainment network. It includes a communication controller managing communication with devices on either network. A physical one-way communicator creates a one-way communication path between the networks. A data transmitter/receiver transfers data from either network to the one-way communicator, and from the one-way communicator to either network. The one-way communicator consists of: a transmission controller receiving data from the internal network; a physical transmitter sending this data one-way; a physical receiver receiving the data; and a reception controller passing the received data to the infotainment network.
2. The one-way gateway of claim 1 , wherein when one-way data communication is performed between the physical one-way data transmitter and the physical one-way data receiver, a physical line between the physical one-way data transmitter and the physical one-way data receiver is removed.
The one-way gateway described in Claim 1 establishes one-way data transfer by physically disconnecting (removing a physical line) between the physical data transmitter and receiver during the one-way data communication between them. This physical disconnection enforces the one-way nature of the communication, preventing any return signal or data flow.
3. The one-way gateway of claim 1 , wherein the physical one-way data receiver transmits a reception state checking signal to the physical one-way data transmitter as the data is received from the physical one-way data transmitter.
The one-way gateway described in Claim 1 includes a mechanism where the physical data receiver, upon receiving data from the physical data transmitter, sends a "reception state checking signal" back to the physical data transmitter. This signal indicates that the data has been successfully received by the receiver.
4. The one-way gateway of claim 3 , wherein the physical one-way data transmitter checks whether the physical one-way data receiver has normally received the data based on the reception state checking signal.
The one-way gateway described in Claim 3 uses the "reception state checking signal" sent by the physical data receiver to confirm successful data transfer. The physical data transmitter checks the received signal to determine if the physical data receiver received the data correctly. This acknowledgement enables error detection and potential retransmission mechanisms.
5. A one-way gateway comprising: a communication controller which takes charge of communication with a device of an internal network or infotainment network of a vehicle; a physical one-way communicator which is adapted to configure a communication section between the internal network and the infotainment network in a physically one-way form; and a data transmitter/receiver which transfers data, transmitted by the device of the internal network or infotainment network, to the physical one-way communicator via the communication controller, and transfers data, received via the physical one-way communicator, to the device of the internal network or infotainment network; wherein the physical one-way communicator comprises: a one-ways reception controller; a one-way transmission controller; a signal transmitter which determines whether a request is normal when the request is received from the device of the infotainment network via the one-way reception controller and output a reception state checking signal based on a result of the determination; and a signal receiver which determines whether the request is normal based on the reception state checking signal from the signal transmitter and transmits the request to the one-way transmission controller if the request is normal.
A one-way gateway for a vehicle network separates the internal network from the infotainment network. It has a communication controller managing communication with devices on either network and a physical one-way communicator creating a one-way path. A data transmitter/receiver transfers data through the one-way communicator. The one-way communicator includes a one-way reception controller, a one-way transmission controller, a signal transmitter that validates requests from the infotainment network and generates a reception state checking signal, and a signal receiver that verifies the request based on the checking signal and forwards the request to the one-way transmission controller if it's valid.
6. The one-way gateway of claim 5 , wherein: the one-way reception controller determines whether the request is normal when the request is received from the device of the infotainment network and transfers the request to the signal transmitter; and the one-way transmission controller receives the request from the signal receiver, determines whether the request is normal, and transfers the request to the device of the internal network.
In the one-way gateway described in Claim 5, the one-way reception controller initially validates requests received from the infotainment network and passes them to the signal transmitter. The signal transmitter generates a reception state checking signal. Then, the one-way transmission controller, after receiving a potentially validated request from the signal receiver, further validates the request before sending it to the device on the internal network. This implements a double-validation mechanism.
7. A method of protecting networks within a vehicle, comprising: transferring, by a one-way transmission controller of a one-way gateway, data from a device of an internal network to a physical one-way data transmitter of the one-way gateway; transferring, by the physical one-way data transmitter, the received data to a physical one-way data receiver of the one-way gateway through one-way communication; transferring, by the physical one-way data receiver, the data from the physical one-way data transmitter to a one-way reception controller of the one-way gateway; and transferring, by the one-way reception controller, the data from the one-way reception controller to a device of an infotainment network.
A method for protecting vehicle networks using a one-way gateway involves the following steps: The one-way transmission controller in the gateway transfers data from a device on the internal network to the gateway's physical one-way data transmitter. The physical one-way data transmitter sends the received data to the physical one-way data receiver through a one-way communication channel. The physical one-way data receiver passes the data to the one-way reception controller within the gateway. Finally, the one-way reception controller transfers the data to a device on the infotainment network.
8. The method of claim 7 , wherein transferring the received data to the physical one-way data receiver comprises removing a physical line between the physical one-way data transmitter and the physical one-way data receiver.
The method for protecting networks within a vehicle, as described in Claim 7, involves physically disconnecting (removing a physical line) the physical data transmitter from the physical data receiver during the transfer of the received data from the transmitter to the receiver. This disconnection enforces a strict one-way communication path.
9. The method of claim 7 , further comprising, between transferring the received data to the physical one-way data receiver and transferring the data to the one-way reception controller, transmitting, by the physical one-way data receiver, a reception state checking signal to the physical one-way data transmitter as the physical one-way data receiver receives the data from the physical one-way data transmitter.
The method for protecting networks within a vehicle, as described in Claim 7, adds a step between transferring data to the physical one-way data receiver and transferring the data from that receiver to the one-way reception controller. This added step consists of the physical one-way data receiver sending a "reception state checking signal" back to the physical one-way data transmitter upon receiving the data.
10. The method of claim 9 , further comprising checking, by the physical one-way data transmitter, whether the physical one-way data receiver has normally received data based on the reception state checking signal.
The method for protecting networks within a vehicle, as described in Claim 9, includes the physical one-way data transmitter checking the "reception state checking signal" received from the physical one-way data receiver to verify that the receiver successfully received the data.
11. The method of claim 7 , further comprising: determining, by a signal transmitter of the one-way gateway, whether a request is normal as the request is received from the device of the infotainment network via the one-way reception controller; outputting, by the signal transmitter, a reception state checking signal based on a result of the determination; determining, by a signal receiver of the one-way gateway, whether the request is, normal based on the reception state checking signal of the signal transmitter; and transferring, by the signal receiver, the request to the one-way transmission controller if the request is normal.
The method for protecting networks within a vehicle, extending Claim 7, involves validating requests originating from the infotainment network: The signal transmitter within the one-way gateway determines whether a request received from the infotainment network (via the one-way reception controller) is valid and outputs a reception state checking signal based on this determination. The signal receiver then uses this signal to determine if the request is valid and only forwards the request to the one-way transmission controller if it passes the validation.
12. The method of claim 11 , further comprising, before determining whether the request is normal as the request is received from the device of the infotainment network: determining, by the one-way reception controller, whether a request is normal as the request is received from the device of the infotainment network; and transferring the request to the signal transmitter.
The method of Claim 11 adds an initial validation step before the signal transmitter checks the request. The one-way reception controller first determines if a request from the infotainment network is valid and then only forwards the request to the signal transmitter for further validation and processing if it's initially deemed valid.
13. The method of claim 12 , further comprising, after transferring the request to the one-way transmission controller if the request is normal: receiving, by the one-way transmission controller, the request from the signal receiver; determining whether the request is normal; and transferring the request to the device of the internal network.
Building on the method of Claim 12, after the signal receiver transfers the validated request to the one-way transmission controller (because it was deemed normal), the one-way transmission controller performs another validation check on the request. If this check passes, the one-way transmission controller finally forwards the request to the device on the internal network. This implements multi-level validation of requests.
Unknown
October 24, 2017
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